如何使用此jQuery在Button Click上进行验证? [英] How to use this jQuery for validation on Button Click?
本文介绍了如何使用此jQuery在Button Click上进行验证?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
(function($) {
/*
Validation Singleton
*/
var Validation = function() {
var rules = {
email : {
check: function(value) {
if(value)
return testPattern(value,"[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])");
return true;
},
msg : "Enter a valid e-mail address."
},
url : {
check : function(value) {
if(value)
return testPattern(value,"^https?://(.+\.)+.{2,4}(/.*)?$");
return true;
},
msg : "Enter a valid URL."
},
required : {
check: function(value) {
if(value)
return true;
else
return false;
},
msg : "This field is required."
}
}
var testPattern = function(value, pattern) {
var regExp = new RegExp(pattern,"");
return regExp.test(value);
}
return {
addRule : function(name, rule) {
rules[name] = rule;
},
getRule : function(name) {
return rules[name];
}
}
}
/*
Form factory
*/
var Form = function(form) {
var fields = [];
form.find("[validation]").each(function() {
var field = $(this);
if(field.attr('validation') !== undefined) {
fields.push(new Field(field));
}
});
this.fields = fields;
}
Form.prototype = {
validate : function() {
for(field in this.fields) {
this.fields[field].validate();
}
},
isValid : function() {
for(field in this.fields) {
if(!this.fields[field].valid) {
this.fields[field].field.focus();
return false;
}
}
return true;
}
}
/*
Field factory
*/
var Field = function(field) {
this.field = field;
this.valid = false;
this.attach("change");
}
Field.prototype = {
attach : function(event) {
var obj = this;
if(event == "change") {
obj.field.bind("change",function() {
return obj.validate();
});
}
if(event == "keyup") {
obj.field.bind("keyup",function(e) {
return obj.validate();
});
}
},
validate : function() {
var obj = this,
field = obj.field,
errorClass = "errorlist",
errorlist = $(document.createElement("ul")).addClass(errorClass),
types = field.attr("validation").split(" "),
container = field.parent(),
errors = [];
field.next(".errorlist").remove();
for (var type in types) {
var rule = $.Validation.getRule(types[type]);
if(!rule.check(field.val())) {
container.addClass("error");
errors.push(rule.msg);
}
}
if(errors.length) {
obj.field.unbind("keyup")
obj.attach("keyup");
field.after(errorlist.empty());
for(error in errors) {
errorlist.append("<li>"+ errors[error] +"</li>");
}
obj.valid = false;
}
else {
errorlist.remove();
container.removeClass("error");
obj.valid = true;
}
}
}
/*
Validation extends jQuery prototype
*/
$.extend($.fn, {
validation : function() {
var validator = new Form($(this));
$.data($(this)[0], 'validator', validator);
$(this).bind("submit", function(e) {
validator.validate();
if(!validator.isValid()) {
e.preventDefault();
}
});
},
validate : function() {
var validator = $.data($(this)[0], 'validator');
validator.validate();
return validator.isValid();
}
});
$.Validation = new Validation();
})(jQuery);
推荐答案
){ /* 验证单例 */ var 验证= 功能(){ var 规则= { 电子邮件 : { 检查:功能(值){ 如果(值) 返回 testPattern(value，"
) { /* Validation Singleton */ var Validation = function() { var rules = { email : { check: function(value) { if(value) return testPattern(value,"[a-z0-9!#
％&'* +/=?^ _`{|}〜-] +(?:\.[a-z0-9！#
%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#
％&'* +/=?^ _`{|}〜-] +)* @(?:[a-z0-9](?:[a-z0-9-] * [a-z0-9])?\.)+ [a-z0-9](?:[a-z0-9-] * [a-z0-9])"); 返回 真； }， msg:" }， 网址:{ 检查:功能(值){ 如果(值) 返回 testPattern(value，"
%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])"); return true; }, msg : "Enter a valid e-mail address." }, url : { check : function(value) { if(value) return testPattern(value,"^https?://(.+\.)+.{2,4}(/.*)?
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